Preparation and characterization of netted sphere-like CdS nanostructures

Netted sphere-like CdS nanostructures consisting of the dentritic nanolines were prepared in ethylenediamine using L-cysteine and cadmium nitrate tetrahydrate as precursors by a solvothermal process at 150 degrees C for 8 h. The reaction time, the molar ratio of precursors, solvent, and temperature can be used as the additional means to control the size and morphology. The synthesized product was characterized by X-ray powder diffraction (XRD), Fourier transform-infrared (FT-IR) spectroscopy, Field emission scanning electron microscopy (FESEM), Energy-dispersive X-ray fluorescence spectroscopy (EDXS), Transmission electron microscopy (TEM), High-resolution transmission electron microscopy (HRTEM), Electron diffraction (ED), Ultraviolet-visible (UV-vis) spectrometer, Raman spectroscopy, and Fluorescence spectrophotometer. And the possible formation mechanism of the netted sphere-like CdS nanostructures is proposed.